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SeanC
Member
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Posted: Wed Jul 16th, 2008 08:02 am |
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I would fail the disc on the front face alone. I couldn't sleep at night knowing that I had let someone carry on using a car in that state......you may get some customers who would be ok with it, but we charge full price to ensure we see the better cars and better customers who have the safety of themselves and others in their interests......
Just recently had my refresher course and the instructor was of the oppinion that the front face of that disc is definitely a fail....may not be stricly VOSA policy if performance didn't appear to be affected, but he said if that ever went to appeal and he was the VE he wouldn't have an issue with siding with the NT.
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keithd
Member
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Posted: Fri Jun 13th, 2008 06:48 am |
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| Well those pics are really clear even if they are from a mobile phone. That disc is dead as has been said and I don't give 2 hoots whether there is a vosa man/woman looking in on this site (david) I'd rather give up the job than issue a vt20 for that.
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Wesley
Trade Member
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Posted: Thu Jun 12th, 2008 11:48 pm |
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Guys,
surely if the corroded area of the outer disc face, Visually in the photo is already less than manufacturers min thickness, then, lets be generous, the remaining shiny surface is well below that requirement?
as for the inner disc face, well what can I say? excessively pitted?
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Weetabix
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Posted: Thu Jun 12th, 2008 09:53 pm |
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| The images were captured using my mobile phone. Perhaps they would have been clearer with a 'proper' digital camera - but I always have my mobile with me & don't tend to bring my camera to work that often.
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David
Banned
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Posted: Thu Jun 12th, 2008 09:38 pm |
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Thanks for that info, the camera flash reflection may have caused me to think that some parts of the shield were present, the evidence just shows how some people neglect proper maintenance to their vehicles.
Thanks
David
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Weetabix
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Posted: Thu Jun 12th, 2008 09:18 pm |
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David wrote: The inner brake disc face area appears also to have an excessively corroded dust shield partly present, but mostly missing. Visually the disc appears in a poor state, but does it meet the fail criteria, the manual says (3.5.1h) a brake disc insecure, cracked, or excessively scored, pitted or worn.
David,
There is NO DUST SHIELD present. The excessively corroded item is the BRAKE DISC.
The inner face of the brake disc has areas of its surface that have flaked / peeled away - like layers of an onion.
These patches may be too large to be described as pits - they are more like troughs now!
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David
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Posted: Thu Jun 12th, 2008 09:09 pm |
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I can appreciate you have been very patient waiting for my reply to your brake discs condition, well here it is;
The outer brake disc face is worn, but not considered to meet the criteria of excessively worn; the shoulder area would be considered to have light surface corrosion forming around the circumference. If after roller brake testing the minimum criteria has been met, the tester may wish to conduct a road test to establish if any brake judder etc is present, the problem is that if you experienced a problem on road test not being part of the mot, if an appeal was lodged how would you go on if the VE passed and advised it?
The inner brake disc face area appears also to have an excessively corroded dust shield partly present, but mostly missing. Visually the disc appears in a poor state, but does it meet the fail criteria, the manual says (3.5.1h) a brake disc insecure, cracked, or excessively scored, pitted or worn.
I think we need to be focusing here on excessively pitted or worn, taking each in turn; An excessively pitted face is a surface damaged such that the face has pits or holes present, this criteria although visually looks poor has not really been met, so is the face excessively worn; An excessively worn brake disc face is one that has clearly weakened were failure is most likely, or a hole has been produced due to rubbing away, and I think that a tester cannot prove either of these two conditions, so a good roller brake test needs to be performed, if the brake pads are well worn into the brake disc face material, then a brake imbalance greater than 25% may not be present, if not I would carry out a road test and confirm how the vehicle feels under braking conditions, even then its up to the individual whether to issue a VT30 or a VT32, however based on what can be seen I wouldn’t envisage a tester having no problems issuing a VT30.
David
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kev1975
Trade Member
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Posted: Sat Jun 7th, 2008 11:58 pm |
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that disc is dead , no benefit of the doubt required , you just have to wonder how people can drive around with brakes in that state , must be a lot of kick back through the pedal 
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Wesley
Trade Member
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Posted: Sat Jun 7th, 2008 11:51 pm |
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Hi Mate,
Yeah they are a lot Clearer, maybe, David could comment on each photo Inividually?
Not sure about your comment on outer disc face, would depend a lot on RBT readings?
Also what about the wear, difference?
Wes.
Last edited on Sun Jun 8th, 2008 12:32 am by Wesley
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Weetabix
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Posted: Sat Jun 7th, 2008 11:23 pm |
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Here's a couple of clearer photos.
The inner face might be described as excessively pitted, but the outer face is probably more of a pass & advise...
Inner disc face:
Outer disc face:
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David
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Posted: Fri Jun 6th, 2008 12:38 am |
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Hi Big E
Yes the pictures not brilliant, but anyway hows life on planet pluto, testing many 1970's vehicles over there?
I have another picture but file size may need altering before i can post
David
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big..E.
Trade Member
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Posted: Fri Jun 6th, 2008 12:07 am |
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DAVID,your piccy looks like life on the planet Pluto from 1976 when I was at primary school...How can you expect an honest appraisal of your findings based on your posting/ pictures...?..Anyway you saw em "in the flesh".. Your call...
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Wesley
Trade Member
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Posted: Fri Jun 6th, 2008 12:01 am |
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David,
Yeah! lol, Thanks for that,
Regards, Wes.
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David
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Posted: Thu Jun 5th, 2008 11:52 pm |
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Hi Wesley
In laymans terms quite simpley (3.5.1h) excessively pitted VT30 after having a good it appears nackered does it not?
Cheers
David
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Wesley
Trade Member
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Posted: Thu Jun 5th, 2008 11:47 pm |
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Hi David,
Without Prejudice, and Without going into "Quotation" Mode, Tell Us In Laymans terms, How You See Them? or What Do You Think? Pass or Fail?
Last edited on Fri Jun 6th, 2008 12:03 am by Wesley
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David
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Posted: Thu Jun 5th, 2008 06:43 pm |
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Hi All
Somebody a little while ago said that they had asked VOSA what a pitted brake disc was or looked like, or what the fail criteria was, or something like that, can't remember properly, however, I have a photograph of a pitted disc, if it looks ok on computer later when I load it in, I will upload here for you to look at and see what you think
Cheers David
Attachment: Pitted Brake Disc.JPG (Downloaded 42 times) Last edited on Thu Jun 5th, 2008 08:35 pm by David
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